baber/WOPTO huggingface dataset:
Patent GB-715039-A (GB)
Title: Manufacture of salts of sulphuric acid esters of leuco-anthraquinone azo-dyestuffs
IPC: C09B9/02
Filed: 1951-07-20
Abstract: Benztriazole derivatives of the formula <FORM:0715039/IV (b)/1> where X is hydrogen, alkyl or alkoxy, each Y is hydrogen, halogen, alkyl or alkoxy, and the acyl group is acetyl, benzoyl or p-phenylbenzoyl, are made by oxidizing the azo dyestuffs <FORM:0715039/IV (b)/2> and condensing the resulting aminobenztriazoles with the appropriate acylacetic esters.  A list of products is given in which X is hydrogen, methyl, ethyl, propyl, methoxy, ethoxy or butoxy and the Y substituents are absent or are 3-chloro, 4-chloro, 2-methyl, 2 : 5-dimethyl, 2-ethyl, 2 : 5-diethyl, 2-butyl, 4-methoxy, 4-ethoxy, 4-butoxy, 2 : 5-diamethoxy, 2-methyl-4 - chloro, 2 - ethyl - 4 - chloro, 2 - methoxy-5-methyl and 2 : 5-dimethoxy-4-chloro. Specification 607,219, [Group IV (c)], is referred to.ALSO:The invention comprises water-soluble salts of leuco esters of anthraquinone-azo dyestuffs of the formula where X is hydrogen, alkyl or alkoxy, <FORM:0715039/IV(c)/1> each g  is hydrogen, halogen, alkyl or alkoxy and the acyl group is acetyl, benzoyl or p-phenylbenzoyl. These are made by coupling diazotized 1-amino-anthraqinuone with the appropriate acylacetyl-aminobenztriazole and converting into the salt of the leuco ester by known methods.  Thus the vat dyestuff may be treated with sulphur trioxide (or substance yielding it, e.g. chlorsulphonic acid) in the presence of a metal (e.g. copper, brass, iron) and a tertiary base (e.g. pyridine), and the product converted into a salt.  The leuco esters give yellow or orange dyeings on vegetable fibres when applied in the usual way.  In the examples the following dyestuffs are prepared and converted into the sodium salts of their leuco sulphuric esters:-1-aminoanthraquinone --> 5-acetoacetylamino-2-phenylbenztriazole, 5-acetoacetylamino-6-methoxy-2-phenylbenztriazole, 5-acetoacetylamino-2-(p-methyoxyphenyl)-benztriazole, 5-acetoacetylamino -6- methoxy -2- (p-methoxyphenyl)-benztriazole, 5-acetoacetylamino-6-methyl-2-(o-tolyl)-benztriazole, 5-benzoylacetylamino-6-methyl-2-(p-methoxyphenyl)-benztriazole and 5-(p-phenylbenzoylacetylamino)-6-methoxy-2-(p-methoxyphenyl) -benztriazole.  When copper is used as the reducing metal a copper compound of the leuco ester is formed as an intermediate. A list of further suitable coupling components is given.  Azobenzene derivatives of the formula:  <FORM:0715039/IV(c)/2> are formed as intermediates by coupling diazotized C6 H2 Y3 NH2 with the appropriate X-substituted m-phenylene diamine in acid medium. Specification 607,219 is referred to.
Patent GB-474523-A (GB)
Title: Machine for the manufacturing of bon-bon crackers
IPC: F24F13/18
Filed: 1937-06-22
Abstract: 474,523. Bon-bon crackers. WILLUMSEN, E. H. S. June 22, 1937, No. 17345. [Class 132 (i)] [Also in Group XVII] In a machine for making bon-bon crackers comprising two pairs of rockable arms, in which the arms of each pair are interconnected by a string 15 and can be swung towards and past one another to cause the string to form a loop encircling the non-crimped cracker, the rockable arms 1, 2 are each fitted with a pivoted angular member 8 mounted so that the transverse motion of the strings towards one another, corresponding to the shortening of the paper cylinder in accordance with the crimping, is effected automatically merely by the tension in the strings. This tension moves, in the direction of the arrow 9, the member 8 on its rotatable bolt 10 in the bearing 7 carried by an arm 6 extending at right-angles from the rockable arm. Stops 12, 13 limit the movement of the member 8 which is normally held by a spring 18 against the stop 12.
Patent GB-403649-A (GB)
Title: Improvements in or relating to humidifying apparatus
IPC: F24F6/12
Filed: 1932-06-20
Abstract: 403,649. Moistening air. IMPERIAL TOBACCO CO. (OF GREAT BRITAIN & IRELAND), Ltd., East Street, Bedminster, Bristol, and SHARMAN, C. F., Windynook, Keynsham, Somerset. June 20, 1932, No. 17362. [Class 55 (ii).] Air-humidifying apparatus employing steam under pressure of about 30 lb. per sq. in. or higher includes a closed vessel 1 which acts to dry the steam entering by a pipe 5 and passing to radial nozzles 6 whose orifices 7 lie adjacent to the outlets of tubes 8 dipping into water in an annular vessel 2. The nozzles are preferably upwardly inclined to allow water to drain away. Tubes 8 are adjustably mounted in clamps 9 which may be adjusted along the nozzles. Nonconducting material 3 is interposed between the steam and water vessels.
Patent GB-236596-A (GB)
Title: Improvements in and relating to electrical installations comprising voltage changing devices
IPC: G05F1/14
Filed: 1925-07-06
Abstract: 236,596. Doloukhanoff, M., (Assignee of Bossu, P.). July 7, 1924, [Convention date]. Switching systems for transformers; systems depending on the use of two or more machines. -In systems in which current modifiers such as auto-transformers 5, 6 are placed between the supply mains 1, 2 and the service mains 3, 4 means are provided to cut such transformers &c. out altogether under no-load conditions but to put them in when a load comes on. As shown, circuit between the supply and service mains is through an impedance 18 and relays 10, 11, 12, but when a lamp 7, for instance, is switched in, the energization of the relay 10 puts in the transformer 5. If the relay 10 gets overheated the rlav 11 attracts its armature and short circuits the relay 10; similarly for the relav 12, which can put in the transformer 6. The system is applicable to rotary converters and other voltage changers.
Patent GB-334585-A (GB)
Title: Improvements in or relating to the separation of solids from liquids
IPC: B01D35/28
Filed: 1929-06-06
Abstract: 334,585. British Glues & Chemicals, Ltd., Akt.-Ges. f³r Chemische Produkte, vorm. H. Scheidemandel, and Wachtel, W. June 6, 1929. Filters having sheet filtering - materials. - The bulk of the liquid is separated from granules contained therein as the mixture flows through a perforated channel 1 arranged substantially horizontally in a receptacle 2 and provided with means for delivering the mixture to a position in the channel that can be varied so that the bulk of the liquid will be removed through the perforations and the remainder will carry the granules to and over the end of the channel to means for removing the remainder of the liquid. The channel may be of perforated sheet metal or wire tissue with oblong apertures extending longitudinally and the sliding of the granules may be facilitated by leaving the whole or part of the lower portion of the channel unperforated. Interchangeable extension pieces 7 of different length may be provided for the inlet 3, so that the free length of the channel may be varied according to the rate of flow. The final separating apparatus may comprise a succession of inclined stationary tubular sieves 8, 9 arranged in cascade in a casing 10 with outlets 13, 14.
Patent GB-476548-A (GB)
Title: Improvements in memorandum devices combined with means for mounting photographic prints
IPC: B42F5/00
Filed: 1937-06-24
Abstract: 476,548. Picture mounts; memorandum appliances. DIRSCHL, M. June 24, 1937, No. 17543. Convention date, May 29. [Classes 11 and 16] In a combined memorandum sheet and means for mounting a photograph in an album, comprising a fastening strip coated with adhesive on both sides and adapted to be applied to the back of the photograph, and a memorandum sheet provided with a grip and an extension adapted to be guided by the fastening strip so that the sheet may be moved in and out beneath the photograph, the angle d, Fig. 1, between the upper edge of the memorandum sheet g and the extension h is greater than a right-angle. The fastening strip has a central portion d, Fig. 3, adapted to be stuck to the back of the photograph b, and ends f, adapted to be stuck to the album leaf a, and to the photograph, or vice versa. The extension h has a wedge-shaped slot i, narrowing towards the sheet g and lying about the central bridge portion e of the fastening strip. The angle alpha of the edges prevents the sheet g from catching when it is slid back into the chainline position, and the shape of the slot i grips the bridge e and holds the sheet in that position. The projecting grip k is differently coloured on opposite sides so that it may be made to agree with the colour of the album leaf.
Patent GB-398972-A (GB)
Title: Improvements in typewriter cases
IPC: B41J29/13
Filed: 1932-06-21
Abstract: 398,972. Typewriters. ROYAL TYPEWRITER CO., Inc., 2, Park Avenue, New York, U.S.A.-(Assignees of Dowd, B. J. ; 385, North Quaker Lane, West Hartford, Connecticut, U.S.A.) June 21, 1932, No. 17545. Convention date, July 29, 1931. [Class 100 (iv).] Attaching machines to baseboards.-The base of a portable-typewriter case is provided with centring-pins for engaging the feet of the typewriter and with securing-means such as levers for engaging the opposite sides of the frame of the typewriter. The case comprises a baseportion A and a cover B. Two metal strips 12 are riveted to the base portion and on each is mounted a pair of pins 14, and a pair of levers 15, pivoted at 16. On each lever is a small projection adapted to engage in an aperture 22 in the strip 12 when the lever is in inoperative position.. The levers have finger-pieces 20 and catch-portions 18, which are adapted to engage down-bent portions 30, 28 on the typewriter frame C, the portion 28 being part of a hold-down bar 26 riveted to the base-member 24 of the typewriter. On the frame are mounted foot-lugs 31, on which are mounted rubber pads 32 and which have holes 34 in which engage the pins 14. A rubber pad 36 is positioned in the cover B so as to engage the platen knob 35 when the case is closed and assist the pins and levers in holding the typewriter in position.
Patent GB-1363124-A (GB)
Title: Telescopic struts
IPC: B64C25/62
Filed: 1972-05-05
Abstract: 1363124 Aircraft undercarriages AUTOMOTIVE PRODUCTS Ltd 5 May 1972 [21 May 1971] 17550/71 Heading B7G [Also in Division E2] A telescopic bracing strut 14 for an aircraft undercarriage has an inner component 26 slidable in an outer tube, and a device for fastening the strut in an extended position comprising a sleeve, slidable in the outer tube with the inner component and having longitudinally extending resilient fingers 42 with heads 43 projecting radially outwardly therefrom and engageable with a circumferential recess 24 in the outer tube to prevent retraction of the inner component by abutment with a face 36 thereof, and a fastening control member mounted for sliding movement relative to the inner component and for holding the heads in the recess, the member being displaced to release the heads for radial inward movement by a device. The strut 14 is fastened in its extended condition, as shown, by the fingers 42 held in the recess 24 by a disc shaped part 35 spring biased to abut the end of the inner component 26. To release the strut, a fluid operated piston 33, moves rightwardly to similarly displace the disc 35 allowing the finger heads 43 to be pushed axially and inwardly by the inner component 26, the heads now being trapped between the abutment face 36 and the disc 35. A switch 49 operated by a rod 46 movable with the piston 33 provides a signal to a remote indicator, or the rod itself protrudes from the strut to provide a visual indicator.
Patent GB-984443-A (GB)
Title: Moisture presence indicator
Inventor: BROOKES ARTHUR
IPC: G01N27/04
Filed: 1961-05-15
Abstract: 984,443. Determining moisture content electrically. L. A. MOORE. May 15, 1962 [May 15, 1961], No.17575/61. Heading G1N. Apparatus for measuring the moisture content of material comprises a portable assembly having two probes for insertion into the material, the resistance between the probes determining the rate of flashing of a neon lamp. The resistance R (Fig. 1) of the test material is in the charging circuit of a capacitor 4, and the neon lamp 2 is in parallel with the capacitor. The apparatus comprises two encapsulated units, the first 9 (Fig. 3) comprising three 30 V batteries 1 connected in series between plugs 6, and the second 10 (Fig. 4) comprising two mating sockets 7 between which are connected two probes 3, and the capacitor 4 is parallel with the neon lamp 2, which is visible through a transparent window.
Patent GB-1396594-A (GB)
Title: Embossed core wrap for electrical cables
IPC: H01B7/02
Filed: 1972-04-17
Abstract: 1396594 Embossed plastics film laminate FMC CORP 17 April 1972 [11 May 1971] 17651/72 Headings B5N and B5B [Also in Division H1] An impervious polymeric film, e.g. polyethylene terephthalate has permanent, closelypacked embossments aligned in parallel rows, each row being in staggered relationship with adjacent rows. The film thickness may be 0À05 mm., and the embossments, which need not be hexagonal, may be made by heating the film to below its softening point and nipping it under relatively high pressure between a cool, engraved roll and a rubber-covered back-up roll. The film may be laminated.
Patent GB-874463-A (GB)
Title: Improvements in and relating to the coating of materials
IPC: C22C29/08
Filed: 1959-05-25
Abstract: An alloy for producing a hard coating, particularly by detonation plating, consists of in percentage by weight, Tungsten carbide 60-80; chromium carbide 14-34; nickel 4-8 in the form of powder preferably of less than 0.0017 inch.  In one method of preparation powdered carbon, tungsten and 80/20 chromium-nickel alloy, or an equivalent mixture of chromium and nickel powders, are sintered in a reducing atmosphere, followed by crushing and screening.  In an example acetylene at 1.55 cu. ft./min., oxygen at 1.55 cu. ft./min. and nitrogen at 1.67 cu. ft./min., giving a carbon oxygen atomic ratio of 1 were fed to a detonation gun.  The alloy powder, suspended in a 0.4 cu. ft./min. stream of nitrogen, so that the detonation mixture contained 40% nitrogen by volume, was fed at 60 gram/min. to the gun, where ignition occurred four times per second, causing the formation of a dense adherent coating on a steel base-plate.  Specifications 742,387 and 742,458 are referred to.
Patent GB-773995-A (GB)
Title: Improvements in or relating to the treatment of soap
Inventor: COETZER LOUIS
IPC: C11D13/18
Filed: 1954-06-16
Abstract: A bar or tablet of soap of at least 20 per cent moisture content, obtained by extrusion at a temperature not exceeding 35 DEG C., is hardened by heating it by means of alternating current to a temperature of at least 40 DEG C., but below that at which the soap becomes no longer form-retaining due to melting and then allowing it to cool.  The soap preferably contains at least 25 per cent moisture and may be soap of a fatty matter content of 60-65 per cent or a filled soap, particularly one containing up to 50 per cent moisture. The extrusion temperature may be 25 DEG -30 DEG C. for unfilled soaps of 30 per cent moisture content.  The bar or tablet is usually heated to a temperature in the range 45 DEG -55 DEG C. The heating may be resistance heating by means of a low-frequency alternating current, such as mains frequency current, or dielectric heating by high-frequency alternating current, such as radio-frequency current Examples are given of the treatment of bars of soap of various fat compositions and also of filled soap bars containing alkaline sodium silicate and sodium carbonate.  The Provisional Specification refers to alternative methods of heating the bars or tablets.
Patent GB-577075-A (GB)
Title: Improvements in and connected with glass melting tanks or furnaces
IPC: C03B5/04
Filed: 1943-10-27
Abstract: 577,075. Glass-melting furnaces. SMITH, W. J. Oct. 27, 1943, No. 17702. Convention date, Nov. 12, 1942. [Class 51 (ii)] [Also in Group XXIII] A continuous glass-melting apparatus comprises a melting tank 10 and a separate working chamber 11 adapted for refinement of the molten glass and so arranged that the maximum glass level therein is not higher than the level of the bottom of the tank 10, the latter being downwardly inclined towards the discharge outlet 25 so that substantially the whole of the tank contents can flow into the working chamber 11. The outlet 25 may communicate with a well 39, Fig. 5, in the floor of the tank and is controlled by a refractory valve member 28 which may be water-cooled. The chamber 11 is of hemispherical form with a discharge plug 38 in the bottom while the tank 10 consists of a trough of semi-circular section built up of blocks 15, Fig. 6, bedded on wire mesh 20 which is supported on longitudinal T-beams 21 carried by transverse cradles 22. The basin 11, which may be fixedly mounted on pillars 32 as shown or arranged to be transportable on rails, is provided with a number of radially arranged forehearths 31 and is covered by a crown 33 fitted with reheating burners 34 and a dampercontrolled stack 35. Batch materials are fed to the tank 10 at 40, Fig. 1, and an additional batch feeder may be provided adjacent the outlet 25 for use when glass is not being supplied to the basin 11. U.S.A. Specification 1,957,252 is referred to.
Patent GB-474001-A (GB)
Title: Improvements in or relating to the manufacture of shaped articles from thermoplasticresins
IPC: B29C51/00
Filed: 1936-06-25
Abstract: 474,001. Shaping thermoplastic resins. TRIPLEX SAFETY GLASS CO., Ltd., CHART, A. D. D., and BAKER, H. W. June 25, 1936, Nos. 17707 and 21607. [Class 87 (ii)] A shaped article is made from a sheet of thermoplastic resin, by holding the sheet in a continuous ring-shaped clamp, heating the sheet until it becomes plastic, and maintaining a difference of fluid pressure between the opposite faces of the sheet until the sheet has been sufficiently distended. When the sheet has cooled, the pressure is removed, and the article is removed from the clamp. The clamped portion may be cut off or it may remain as part of the article. Liquid or gas or both, or vacuum may be employed for producing the pressure difference. As shown, a sheet of thermoplastic resin such as is described in Specifications 417,999, 419,357. and 421,397, [all in Group IV], is clamped between a ring 11 and a disc 14 having an inlet 15 for compressed air. The sheet may be blown upwardly, as shown, or downwardly or horizontally. The sheet may be made of superposed parts to prevent thinner portions 18 from being produced. The invention is applicable to the shaping of windscreens for aircraft.
Patent GB-481074-A (GB)
Title: Improvements in freezing trays
IPC: F25C1/24
Filed: 1937-06-25
Abstract: 481,074. Ice - maldng. GENERAL MOTORS CORPORATION. June 25, 1937, No. 17708. Convention date, July 2, 1936. [Class 29] A freezing-tray comprises a metal pan having bottom and side walls 11, 12 and 13, and corner areas 20 of the pan slope upwardly from lines 22 to the respective corners. When the pan is placed on a flat surface and the corners 21 are pressed on to the surface by hand the tray is slightly distorted and the ice block is loosened from the pan to facilitate removal. A rubber grid comprising a central wall 30 and side walls 32 may be placed in the pan. The grid may be lifted out by integral rubber handles 35 and the blocks of ice can then be removed from the grid.
Patent GB-375985-A (GB)
Title: Improvements in and relating to cold storage chambers for food and other substances or liquids convertible for other uses
IPC: F25D7/00
Filed: 1931-06-18
Abstract: 375,985. Cabinets and wardrobes. WEBB, H. J. H., Lower Lodge, Cleeve Hill, Bath. June 18, 1931, No. 17711. [Class 52 (i).] A cooling-chamber comprising a frame h, Fig. 3, surrounded by moistened sheets of fabric &c. n is removably mounted within a cabinet a, Fig. 1, having front hinged doors d and a hinged top c, and when the cooling- chamber is removed the cabinet may be used as a wardrobe &c. The frame h comprises corner posts fitting in sockets g in a bottom tray f, and supports a top water tank j surrounded by a perforated drip pipe k supplied from the tank through taps m. The fabric is supported by the pipe k and when not in use may be rolled up and supported within clips o in the top tank. Some of the shelves q in the frame are removable. The sides and doors of the cabinet may have gauze panels, which are covered with panels of wood, glass or mirror secured by ball catches &c. when the whole is used as a wardrobe. The frame and shelves without the tanks may be left in the cabinet when used for general storage purposes.
Patent GB-874689-A (GB)
Title: Improvements relating to the determination of coating weights
IPC: C08J7/04
Filed: 1959-05-25
Abstract: In a photoelectrically controlled polymer coating process (see Group XL(b)) the coating compound absorbs ultra-violet light with wavelength 220-400 millimicrons.  The coating compound comprises 0,1%-6% of an alkali metal or ammonium salt of sulphonic acids of condensed or uncondensed aromatic compounds, e.g. alkyl benzenes and naphthalenes and derivatives of anthracene or phenanthrene.  This ultra-violet light absorbing dispersant is combined with the main polymer comprising at least 80% of vinylidene chloride with 3%-30% of one or more of the following: methyl, ethyl, isobutyl, butyl, octyl and 2-ethylhexyl acrylates and methacrylates; phenyl, cyclohexyl, p-cyclohexylphenyl, methoxyethyl, chloroethyl, and 2-nitro-2 methylpropyl methacrylates, and the corresponding esters of acrylic acid; methyl and octyl a -chloroacrylates, methyl isopropenyl ketone, acrylonitrile, methacrylonitrile, methyl vinyl ketone, vinyl chloride, vinyl acetate, vinyl propionate, vinyl chloroacetate, vinyl bromide, styrene, vinyl naphthalene, ethyl vinyl ether, N-vinyl phthalimide, N-vinyl succinimide, N-vinyl carbazole, isopropenyl acetate, methylene diethyl malonate, acrylamide, methacrylamide and mono-alkyl substitution products thereof, phenyl vinyl ketone, diethyl fumarate, diethyl maleate, methylene diethyl malonate, dichlorovinylidene fluoride dimethyl, diethyl and dibutyl itaconate, vinyl pyridine, maleic anhydride allyl glycidyl ether and other unsaturated aliphatic ethers described in U.S.A. Specification 2,160,943.  Two examples of coating compounds are given in detail as follows: For use with ultra-violet light of wavelength 220 millimicrons, 2 parts of a primary dispersing agent comprising equal quantities of "Duponol" WAQ, "Duponol" LS Paste and "Sulframin" ABN are dispersed with 96 parts vinylidene chloride, 2 parts methyl acrylate, 2 parts acrylonitrile, 1 part allyl glycidyl ether, 1 part methacrylic acid and water.  0,4 Parts ammonium persulphate and 0,2 part sodium metabisulphite are added as catalysts.  The mixture is refluxed at 32 DEG -36 DEG C. to complete copolymerization.  A secondary dispersing agent consisting of 1,0 part "Duponol" WAQ, 0,3 part "Daxad" 11 and 2,0 parts "Sulframin" ABN is added to stabilize against coagulation and the mixture cooled and filtered.  For use with ultra-violet light of wavelength 254 millimicrons the above procedure is used with the following substances.  Those initially mixed are "Duponol" WAQ, 1 part; vinylidene chloride, 94 parts; methyl acrylate, 6 parts; itaconic acid, 1 part and a catalysing agent comprising 0,250 part ammonium persulphate; 0,125 part sodium metabisulphite and 0,003 part ferrous ammonium sulphate. The secondary dispersing agent comprises 1 part "Duponol" WAQ; 2,0 parts "Santomerse" 3 and 0,4 part "Daxad" 11.  (The words "Daxad," "Duponol" and "Santomerse" are Registered Trade Marks).
Patent GB-292604-A (GB)
Title: Improvements in film holders or loading cases for cinematographic cameras
IPC: G03B17/26
Filed: 1928-06-19
Abstract: 292,604. PathÚ CinÚma, Anciens Etablissements PathÚ FrÞres. June 23, 1927, [Convention date]. Kinematograph apparatus.-Film holders having covers which are dished so as to project into the film space are so constructed as to prevent the film from becoming jammed between the dished part. of the cover and the inner surface of the wall of the holder. As shown, the wall 1 of the holder is rabbeted, the rabbet having a bevelled surface 7 which is engaged by the bevelled wall 5 of the dished part of the cover 4. In a modification, rabbets are formed only at a number of separated places on the wall 1, the bevelled wall of the dished part of the cover being shaped to fit into them.